A clean and efficient synthesis of spiro[4H-pyran-oxindole] derivatives catalyzed by egg shell
Journal Title: Eurasian Chemical Communications - Year 2019, Vol 1, Issue 0
Abstract
Egg shell has been utilized as a natural, green, reusable and eco-friendly reagent for the synthesis of spiro[4H-pyran-oxindole] derivatives by one-pot multicomponent reaction of isatins, 1,3-diketones, and malononitrile/ ethyl cyanoacetate. Good functional group tolerance and broad scope of usable substrates are other prominent features of the present methodology.
Authors and Affiliations
leila leila Youseftabar-Miri leila Youseftabar-Miri
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